Without adding the quotation marks and without referencing the websites, which are easily found by entering +universe +age +billion into the search field on google.com:

1. the age of the universe is apparently 8 to 12 billion years 2. the age of the Universe would be 8-11 billion years 3. the new 13 billion year estimated age of the Universe 4. the age of the universe as inferred from the Hubble constant would be about 9 billion years 5. EVOLUTIONARY AGE OF THE UNIVERSE 14-15 billion years 6. the Hubble constant and the geometry of the Universe typically yield ages of 10-20 billion years for the age of the Universe 7. while previous calculations meant estimates of the universe's age could vary by as much as 10 billion years 8. the "best, ie, most consistent, age of the universe is estimated to be 14-17 billion years 9. the Universe's age drops to 7--15 billion years 10. the age of the universe of 7.5 billion years 11. Present estimates for the universe's age range from eight to twenty billion years 12. Estimates range from as low as about 10 billion years to as high as 40 billion years 13. So it seems safe to estimate that the age of the Universe is at least 15 billion years old, but probably not more than 20 billion years old 14. is determining the age of the universe. Some measurements of the Hubble constant suggest an age as low as 8 billion years 15. and the universe's age at 9 billion years 16. Recent reports on the age of the universe suggest it's only 8-12 billion years old 17. universe might only be eight or ten billion years old 18. The observations of the density of the universe, favorable to a flat universe lead to an age of the universe of 9 billion years 19. project the age of the universe to be 8 billion years 20. the age of the universe may be as small as 8 billion years 21. the age of the universe is about eight-twelve billion years 22. These new results yield ranges for the age of the Universe from 9-12 billion years, and 11-14 billion years, respectively 23. somewhere between about 7 to 10 billion years ago, when the Universe was between a quarter and half its present age 24. At the present time estimates of the age of the universe range between 7 and 20 billion years 25. such as the age of the Universe which ranges between 17 and 18 billion years